Water heater



Apwll 2%? W36., E. DE WEESIE WATER HEATER Filed Deo. 19, 1935 Patented pr. .28, 1936 U liti TE S TAT intatte QFFIQE 4i Claims.

This invention relates to heating means for a motor vehicle having an internal combustion or other engine provided with a water cooling system therefor and it generally aims to provide a novel water heater adapted for association with the exhaust manifold of such an engine. The device operates to heat the water to a higher temperature before the water reaches the radiator, in order to deliver maximum heat, almost instantaneously.

The more specific objects and advantages will become apparent from a consideration of the description following taken in connection with accompanying drawing illustrating an operative embodiment.

Figure l is a view showing my improvement attached to an internal combustion engine and associated automobile parts;

Figure 2 is a longitudinal sectional view, taken through the heater;

Figure 3 is a vertical sectional view taken on the plane of line 3 3 of Figure 3; and

Figure 4 is a longitudinal sectional View taken on the plane of line i-ll of Figure 2.

Referring specifically to the drawing, wherein like reference characters designate like or similar parts, the heater comprises a cylindrical body or casing lil having removable end plates or closures Il having a part i2 telescoped within the cylinder l@ and providing a shoulder or flange engaging the ends of such cylinder, with gasket lli interposed. A bolt it extends centrally and removably through the plates ll and cylinder l0, having a head iii at one end and a nut i6 screw threaded to the other end. ln this way the parts are removably clamped together.

A water conduit in the form of a coil ll, preferably made of copper, is disposed within the casing i@ and has inlet and outlet terminals I8 extending outwardly through openings in the plates Il. Nipples lil surround the terminals i8 and have water-tight, screw threaded engagement at 2@ in openings of the end plates ll. Conduits 2l and 22 are connected to the terminals i8, engaged with the ends of such terminals. The detachable connections are effected by means of clamping sleeves 23 secured on the conduit 2l 'and having screw threaded engagement at 2li with extensions 25 of nipples i9. Detachable and water-tight connections are thus effected.

Said pipe 2l is connected with the cooling water system of an internal combustion engine 2l, as suggested in Figure 1 and the pipe 22 is connected with a radiator 28 located within ani automobile and preferably fastened to the dashboard 29. The other connection `from the radiator 28 to the water cooling system or jacket of the automobile engine 21 is effected through a pipe or conduit 30. 5

A heater is adapted to be primarily supported on and to be heated from the gases which are spent by the engine and which normally escape therefrom through an exhaust manifold 3l. To this end, a nipple 32 is screw threaded at 33 10 into the lower side of the casing l0 and at B is screw threaded into an opening in the exhaust manifold 3i, a lock nut 35 preferably engaging said screw thread 3d, in addition.

A metallic cylinder Se of less diameter than the 15 interior of the casing lll is disposed within such casing and about the coils Il, its opposite ends being engaged at opposite ends by internal ribs 3l', integral with the plate Il, such ribs preferably being in parallelism and on opposite sides 20 of the longitudinal axis.

Said cylinder 36 serves to effectively baflie the gases which enter the casing through nipple 32 from the exhaust manifold 3| and in order to further bailie such gases to cause them to take 25 a tortuous path through the device to enable all effective heat to be extracted, a baffle plate 36 is disposed at approximately the center of the device, being effectively held in position as the ends thereof engage in slots 39 in said ribs 3l. The 30 casing of cylinder 36 is concentrically positioned since the casing IE] has a plurality of longitudinally and inwardly extending ribs i0 on the inner wall of casing iii in engagement therewith.

The spent or exhaust gases from the casing i9 35 escape through an elbow 4| located at the top thereof which is connected in any suitable manner at Li2 to a discharge pipe 133, leading to the lower part of the engine or automobile so as to discharge into the atmosphere at any preferred location.

In operation the heated gas enters the casing lll through nipple 32 and is intercepted by the cylinder 3B and forced to the ends of the casing by the lowermost ribs 40, the gases encounter 45 the extended ends of baille 3B some of which pass between the ends of said baffle and the head plates il while a part of the gas passes between the side pairs of ribs El and the cylinder and a part under the baille 38 into the core of the coil. 50 This latter portion of the gas will pass between the coil and the edges of the plate. upwardly and out at the ends of the coil, the nal movement of the gas being inwardly towards the discharge at elbow 4I. By this means it will be apparent that the heat from the gas will be effectively used to heat the coil I1 and superheat the water circulated therethrough.

It will be noted that the diameter of the outlet 4| is considerably less than the diameter of the inlet or nipple 32. As a result, the escaping gases will be mullled.

It will be clear that the plate 38 may be disposed at any desired location and that the baffling means may be generally arranged as desired.

Various changes may be resorted to provided they fall within the spirit and scope of the invention.

I claim as my invention:-

1. A mechanism of the class described having a casing, a coil therein for heating water, said coil having terminals, end plates connected to the casing and through which said terminals pass, connections for said terminals exteriorly of the casing, an inlet for a heating iluid, baille means within such casing comprising a cylinder, and longitudinally extending ribs on said casing exteriorly engaging said cylinder.

2. A mechanism of the class described having a casing, a coil therein for heating water, said coil having terminals, end plates connected to the casing and through which said terminals pass, connections for said terminals exteriorly of the casing, an inlet for a heating iluid, baille means within such casing comprising a cylinder, longltudinally extending ribs on said casing exteriorly engaging said cylinder, inwardly extending ribs on said end plates, and a baille plate in the coil, said ribs having slots entered by the ends of said plates.

3. A mechanism of the class described having a casing, a coil therein for heating water, said coil having terminals, end plates connected to the casing and through which said terminals pass, connections for said terminals exteriorly of the casing, an inlet for a heating fluid, baille means within such casing comprising a cylinder, longitudinally extending ribs on said casing exteriorly engaging said cylinder, inwardly extending ribs on said end plates, a baille plate in the coil, said ribs having slots entered by the ends of said plates, and a bolt removably passing through the end plates.

4. A device of the class described having a casing, end plates for said casing, means detachably connecting the end plates to the casing, a coil for heating water disposed within the casing and having terminals extending outwardly through said end plates, inwardly extending ribs on said end plates provided with slots, and a baille plate within the coil having engagement at its ends in said slots.

WALTER E. DE WEESE. 

